import java.util.Scanner;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: Administrator
 * Date: 2024-03-13
 * Time: 14:46
 */

class Data{
    private int x;
    private int y;

    Data(int x, int y ){
        this.x = x;
        this.y = y;
    }
    public int add(int x , int y){
        return x + y;
    }

    public int getX(){
        return x;
    }

    public int getY() {
        return y;
    }
}

public class Test {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        while (scan.hasNextInt()) {
            int x = scan.nextInt();
            int y = scan.nextInt();
            Data data = new Data(x,y);
            System.out.println(data.getX() + data.getY());
        }
    }
}
